[Nicolai P. Zwar]

Yes, we’re not really in disagreement.

One core difference between orchestral and electronic music is, as you said, that orchestral music is practically always written down. Notes on paper, which are to be performed. And different performers perform the same piece, the same notes, differently.
Not all electronic music is written down (though a lot of it actually is… especially when it’s mixed with orchestral music, as in the scores by Jerry Goldsmith (I have some actual scores here) or also classical works, like Piere Boulez’ Répons which is written for orchestra and real-time computer-driven sound transformation via the 4X digital signal processor!
Anyway, of course, not all electronic music is written down, often times (though not always) it doesn’t even require more than one performer.
However, I found Alan Howarth’s performance of ASSAULT ON PRECINCT 13 recreates the exact vibe and sound of John Carpenter’s original score quite well, possibly because he’s worked with Carpenter and knows exactly what he did. It’s also not overly complicated music, with repeated ostinatos and clear chords. So once you get the “sound”, it’s fairly easy to recreate a performance that aligns well with a previous performance.